RCAIDE.Library.Plots.Energy.plot_electric_propulsor_efficiencies

plot_electric_propulsor_efficiencies#

plot_electric_propulsor_efficiencies(results, save_figure=False, show_legend=True, save_filename='Electric_Efficiencies', file_type='.png', width=11, height=7)[source]#

Creates a three-panel plot showing efficiencies of electric propulsion system components.

Parameters:

  • results (Results) – RCAIDE results structure containing segment data and propulsion system efficiencies

  • save_figure (bool, optional) – Flag for saving the figure (default: False)

  • show_legend (bool, optional) – Flag for displaying plot legend (default: True)

  • save_filename (str, optional) – Name of file for saved figure (default: “Electric_Efficiencies”)

  • file_type (str, optional) – File extension for saved figure (default: “.png”)

  • width (float, optional) – Figure width in inches (default: 11)

  • height (float, optional) – Figure height in inches (default: 7)

Returns:

fig

Return type:

matplotlib.figure.Figure

Notes

The function creates a 2x2 subplot containing:

  1. Propulsor efficiency vs time (rotor or ducted fan)

  2. Figure of Merit vs time

  3. Motor efficiency vs time

Each segment is plotted with a different color from the inferno colormap. Different propulsors are distinguished by different markers.

Major Assumptions

  • For identical propulsors, only the first propulsor’s data is plotted

  • Time is converted from seconds to minutes for plotting

  • Efficiencies are normalized between 0 and 1

Definitions

‘Figure of Merit’

Measure of rotor efficiency comparing actual power to ideal power

‘Motor Efficiency’

Ratio of mechanical power output to electrical power input

‘Propulsor Efficiency’

Ratio of useful thrust power to shaft power input